Back Eagle- Pennsylvania’s bald eagle population numbers more than 40 nesting pairs – up from three in 1980 – because on the Game Commission’s bald eagle reintroduction program in the 1990s.http://www.pgc.state.pa.us/pgc/cwp/view.asp?a=458&q=152442
Bobcats- Pa's bobcat populations are being kept relatatively stable due to the bobcat management planhttp://www.biggamehunt.net/sections/Pennsylvania/Game_Commission_Announces_Bobcat_Harvest_Results_06160412.html
Elk- The elk Management plan helped imporve the habitat of the elk in PA, and also helped them maintain a healthy population size.http://www.pgc.state.pa.us/pgc/lib/pgc/elk/pdf/elk_management_plan.pdf